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Finding the Fourth Proportional to 59,747.60, 89,621.40 and 20,349.20

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Solution

The fourth proportional to 59,747.60, 89,621.40 and 20,349.20 is: 30,523.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,747.60 : 89,621.40 = 20,349.20 : x
  2. Step 2: Convert to fraction form
    59,747.60/89,621.40 = 20,349.20/x
  3. Step 3: Cross multiply
    59,747.60x = 89,621.40 × 20,349.20
  4. Step 4: Simplify right side
    59,747.60x = 1,823,723,792.88
  5. Step 5: Solve for x
    x = 1,823,723,792.88/59,747.60
  6. Step 6: Final answer
    x = 30,523.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.